[jira] [Created] (FLINK-30045) FromClasspathEntryClassInformationProvider too eager to verify MainClass

["Nico Kruber (Jira)" <ji...@apache.org>]

Nico Kruber created FLINK-30045:
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             Summary: FromClasspathEntryClassInformationProvider too eager to verify MainClass
                 Key: FLINK-30045
                 URL: https://issues.apache.org/jira/browse/FLINK-30045
             Project: Flink
          Issue Type: Bug
          Components: Client / Job Submission
    Affects Versions: 1.16.0, 1.17.0
            Reporter: Nico Kruber
            Assignee: Nico Kruber
             Fix For: 1.17.0, 1.16.1


{{FromClasspathEntryClassInformationProvider}} is attempting to verify (eagerly) whether the given MainClass is on the user classpath. However, it doesn't handle cases where the main class is inside a nested jar.
This is something you would see when using such a nested jar file with the {{StandaloneApplicationClusterEntryPoint}}, e.g. from {{standalone-job.sh}}

We actually don't need this check at all since {{PackagedProgram}} is already doing it while attempting to load the main class. Having this once should be enough.



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